28343511

素因数分解:

$3^2\times 7^2\times {\mathrm{64271}}^1$

素因数の和:64291

約数の個数: 18

約数和(自身を含む): 47625552

約数和(自身を除く): 19282041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 64271, 192813, 449897, 578439, 1349691, 3149279, 4049073, 9447837, 28343511]

約数ペア:

[(1, 28343511), (3, 9447837), (7, 4049073), (9, 3149279), (21, 1349691), (49, 578439), (63, 449897), (147, 192813), (441, 64271)]